Pierre Prinetti

Set your anchor name in the options page.
Typical use case: a big picture in the header you don’t want people 
to be bothered with every time they click on an internal link. But 
you still want that beautiful picture to be there.
Feel free to contribute: 
github.com/pierreprinetti/wp-permamod

wp-permamod

Very simple plugin that adds an anchor to page and post permalinks, which can point to an existant anchor in your template.

elpresidento

Creates anchor links to heading tags in the content and displays them automatically at the top of the content, or allows for custom placement with tags or sidebar widget.
Features:
<ul>
<li>Has option to auto display anchor links to Heading tags in content.</li>
<li>Allows control of which content to auto display links.</li>
<li>Can disable plugin css to allow custom styles to be applied.</li>
<li>Has widget available for display</li>
<li>Insert custom title to display above links</li>
<li>Clears all traces from any excerpts displayed</li>
<li>Selection between numerically ordered and bulleted list </li>
<li>Auto Links indentation</li>
<li>qTranslate/mqTranslate support</li>
<li>Show “back to content” link next to heading</li>
</ul>
<h3>Known issues</h3>

Better Anchor Links

Creates anchor links to heading tags in the content and displays automatically at the top of the content, or allows for custom placement with tags.

wp-permamod vs Better Anchor Links